Grinding device for lithium battery isolating membrane

Abstract

The utility model discloses a grinding device for lithium battery isolating membranes, which relates to the field of grinding of lithium battery isolating membranes and comprises a pretreatment component, the top of an inner cavity of the pretreatment component is rotatably connected with a main gear and an auxiliary gear, and a first crushing roller and a second crushing roller are rotatably connected in the inner cavity of the pretreatment component. A grinding barrel is installed at the bottom of the pretreatment assembly, a grinding assembly is installed in an inner cavity of the grinding barrel, an eccentric wheel is rotationally connected into an inner cavity of the grinding assembly, a contact rod is arranged on the outer wall of the grinding barrel, a first servo motor is installed at the top of the pretreatment assembly, and a feeding pipe is installed on the side edge of the pretreatment assembly. And a filter screen is mounted at the bottom of the inner cavity of the pretreatment assembly. According to the grinding device for the lithium battery isolating membrane, raw materials of the lithium battery isolating membrane can be pretreated and then ground, and therefore the grinding efficiency and precision of the grinding device can be effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of grinding lithium battery separators, and in particular to a grinding device for lithium battery separators. Background Technology

[0002] The separator is one of the key internal components in a lithium battery structure. The performance of the separator determines the battery's interface structure, internal resistance, and other characteristics, directly affecting its capacity, cycle life, and safety. A high-performance separator plays a crucial role in improving the overall performance of the battery. The main function of the separator is to separate the positive and negative electrodes, preventing short circuits caused by contact between them. It also allows electrolyte ions to pass through. The separator material is non-conductive, and its physicochemical properties significantly influence battery performance. Different types of batteries use different separators. For lithium batteries, since the electrolyte is an organic solvent system, separator materials resistant to organic solvents are required; generally, high-strength, thin-film polyolefin porous membranes are used.

[0003] When grinding raw materials for lithium battery separators, the materials vary in size. When grinding large volumes of raw materials, the grinding equipment will be affected, and in severe cases, shutdown may occur, which will affect both the grinding efficiency and accuracy.

[0004] Therefore, it is necessary to propose a grinding device for lithium battery separators to solve the above problems. Utility Model Content

[0005] The main objective of this invention is to provide a grinding device for lithium battery separators, which can effectively solve the problems in the background art.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A grinding device for lithium battery separators includes a pretreatment component, wherein a main gear and a secondary gear are rotatably connected to the top of the inner cavity of the pretreatment component, and a first grinding roller and a second grinding roller are rotatably connected to the inner cavity of the pretreatment component.

[0008] The pretreatment component has a grinding barrel installed at the bottom, a grinding assembly installed in the inner cavity of the grinding barrel, an eccentric wheel rotatably connected in the inner cavity of the grinding assembly, and a contact rod provided on the outer wall of the grinding barrel.

[0009] Preferably, a first servo motor is installed on the top of the pretreatment component, a feed pipe is installed on the side of the pretreatment component, and a filter screen is installed at the bottom of the inner cavity of the pretreatment component.

[0010] Preferably, there are two main gears and two auxiliary gears, which mesh with each other. The bottom of the first servo motor is mounted on the top of one of the main gears via a first rotating shaft. The first crushing roller is mounted on the bottom of the main gear, and the second crushing roller is mounted on the bottom of the auxiliary gear.

[0011] Preferably, an elastic band is installed on the top of the opposite side of the outer wall of the grinding assembly and the inner wall of the grinding barrel, the pretreatment assembly is connected to the inner cavity of the grinding barrel through a filter screen, and the inner wall of the grinding assembly is equipped with protrusions.

[0012] Preferably, a screen is installed at the bottom of the inner cavity of the grinding assembly, a second servo motor is installed at the bottom of the screen, and the top of the second servo motor is installed at the bottom of the eccentric wheel via a second rotating shaft.

[0013] Preferably, a spring is installed on the inner wall of the grinding barrel, and the other end of the spring is installed on the outer wall of the grinding assembly. A material extraction pipe is installed at the bottom of the outer wall of the grinding barrel, and a material extraction pump is connected to the outer flange of the material extraction pipe. The material extraction pipe is located at the bottom of the screen. A through groove is opened on the outer wall of the grinding barrel. A rotary motor is installed on the outer wall of the grinding barrel. The top of the rotary motor is installed at the bottom of the contact rod through a third rotating shaft. The contact rod is used to contact the grinding assembly through the through groove.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] This grinding device for lithium battery separators, by activating a first servo motor, drives the main gear and the secondary gear to mesh, allowing the first and second grinding rollers to rotate within the pretreatment component. Before grinding the raw materials for lithium battery separators, the materials can be pretreated to a suitable size, preventing large volumes of raw materials from entering the grinding chamber. This improves grinding efficiency and precision, and also prevents material blockage in the grinding chamber.

[0016] This grinding device for lithium battery separators uses a second servo motor to drive an eccentric wheel to rotate within the grinding assembly. The eccentric wheel, in conjunction with the protrusions on the inner wall of the grinding assembly, grinds the raw materials. The screen used in conjunction with the device filters the ground material, allowing sized raw materials to be discharged from the grinding chamber through the extraction pipe.

[0017] This grinding device for lithium battery separators can drive a contact rod to rotate by activating a rotary motor. After the contact rod contacts the grinding component through the through groove, it can drive the grinding component to vibrate in conjunction with the spring. Based on this, the distance between the grinding component and the eccentric wheel can be shortened, which can shake off the raw materials remaining on the inner wall of the grinding component and improve the grinding accuracy. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the pretreatment component of this utility model;

[0020] Figure 3 This is a schematic diagram of the inner cavity of the grinding barrel of this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the grinding barrel of this utility model.

[0022] In the diagram: 1. Pre-treatment component; 2. First servo motor; 3. Feed pipe; 4. Filter screen; 5. Main gear; 6. Secondary gear; 7. First crushing roller; 8. Second crushing roller; 9. Grinding barrel; 10. Feed pipe; 11. Screen; 12. Second servo motor; 13. Elastic belt; 14. Grinding component; 15. Protrusion; 16. Eccentric wheel; 17. Spring; 18. Through groove; 19. Rotary motor; 20. Contact rod. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments. Example

[0024] like Figure 1 , Figure 2 As shown, a grinding device for lithium battery separators includes a pretreatment component 1. A main gear 5 and a secondary gear 6 are rotatably connected to the top of the inner cavity of the pretreatment component 1. A first crushing roller 7 and a second crushing roller 8 are rotatably connected to the inner cavity of the pretreatment component 1. A first servo motor 2 is installed on the top of the pretreatment component 1. A feed pipe 3 is installed on the side of the pretreatment component 1. A filter screen 4 is installed at the bottom of the inner cavity of the pretreatment component 1. There are two main gears 5 and two secondary gears 6. The main gears 5 and secondary gears 6 mesh with each other. The bottom of the first servo motor 2 is installed on the top of one of the main gears 5 through a first rotating shaft. The first crushing roller 7 is installed on the bottom of the main gear 5, and the second crushing roller 8 is installed on the bottom of the secondary gear 6.

[0025] By activating the first servo motor 2, the main gear 5 and the secondary gear 6 can be driven to mesh, so that the first crushing roller 7 and the second crushing roller 8 can rotate in the inner cavity of the pretreatment component 1. Before grinding the raw materials of the lithium battery separator, they can be pretreated to make them into a suitable size, so as to prevent large-volume raw materials from entering the inner cavity of the grinding barrel 9. Based on this, the grinding efficiency and accuracy can be improved, and the phenomenon of material blockage in the grinding barrel 9 can also be avoided. Example

[0026] like Figure 1 , Figure 3 , Figure 4 As shown, a grinding device for lithium battery separators includes a grinding barrel 9 mounted at the bottom of a pretreatment component 1. A grinding component 14 is installed inside the grinding barrel 9, and an eccentric wheel 16 is rotatably connected inside the grinding component 14. A contact rod 20 is provided on the outer wall of the grinding barrel 9. An elastic band 13 is installed on the top of the opposite side of the outer wall of the grinding component 14 and the inner wall of the grinding barrel 9. The pretreatment component 1 communicates with the inner cavity of the grinding barrel 9 through a filter screen 4. A protrusion 15 is installed on the inner wall of the grinding component 14. A screen 11 is installed at the bottom of the inner cavity of the grinding component 14, and a second servo motor is installed at the bottom of the screen 11. 12. The top of the second servo motor 12 is mounted on the bottom of the eccentric wheel 16 via the second rotating shaft. A spring 17 is installed on the inner wall of the grinding barrel 9. The other end of the spring 17 is installed on the outer wall of the grinding assembly 14. A material extraction pipe 10 is installed at the bottom of the outer wall of the grinding barrel 9. A material extraction pump is connected to the flange on the outer wall of the material extraction pipe 10. The material extraction pipe 10 is located at the bottom of the screen 11. A through groove 18 is opened on the outer wall of the grinding barrel 9. A rotary motor 19 is installed on the outer wall of the grinding barrel 9. The top of the rotary motor 19 is mounted on the bottom of the contact rod 20 via the third rotating shaft. The contact rod 20 is used to contact the grinding assembly 14 through the through groove 18.

[0027] By activating the second servo motor 12, the eccentric wheel 16 can be driven to rotate within the inner cavity of the grinding assembly 14. The eccentric wheel 16, in conjunction with the protrusions 15 on the inner wall of the grinding assembly 14, can grind the raw materials. With the help of the screen 11, the ground material can be filtered, allowing raw materials of the correct size to be discharged from the inner cavity of the grinding barrel 9 through the extraction pipe 10. By activating the rotary motor 19, the contact rod 20 can be driven to rotate. After the contact rod 20 contacts the grinding assembly 14 through the through groove 18, the spring 17 can drive the grinding assembly 14 to vibrate. This can shorten the distance between the contact rod and the eccentric wheel 16, shake off the raw materials remaining on the inner wall of the grinding assembly 14, and improve the grinding accuracy.

[0028] It should be noted that this utility model is a grinding device for lithium battery separators. In use, the raw material is fed into the inner cavity of the pretreatment component 1 through the feed pipe 3. The first servo motor 2 is started, driving the main gear 5 and the auxiliary gear 6 to mesh. This causes the two first crushing rollers 7 and two second crushing rollers 8 to rotate within the inner cavity of the pretreatment component 1. The first crushing rollers 7 and the second crushing rollers 8 work together to crush the raw material. The crushed raw material, after being crushed to a suitable size, passes through the filter screen 4 and enters the inner cavity of the grinding barrel 9. After entering the inner cavity of the grinding barrel 9, the raw material will be located in the grinding group... In the inner cavity of component 14, the second servo motor 12 and the rotary motor 19 are started. The second servo motor 12 drives the eccentric wheel 16 to rotate. The eccentric wheel 16, together with the protrusion 15, can perform grinding work on the raw materials. After the rotary motor 19 is started, it drives the contact rod 20 to contact the grinding component 14. With the help of the spring 17, the grinding component 14 vibrates. After the grinding component 14 vibrates, the elastic band 13 moves with the movement of the grinding component 14. After the grinding component 14 vibrates, it will shake off the raw materials remaining on its inner wall and improve the grinding accuracy. After the grinding is completed, the material extraction tube 10 is started to extract it.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A grinding apparatus for lithium battery separators, comprising a pretreatment component (1), characterized in that: The top of the inner cavity of the pretreatment component (1) is rotatably connected to a main gear (5) and a secondary gear (6), and the inner cavity of the pretreatment component (1) is rotatably connected to a first crushing roller (7) and a second crushing roller (8). The pretreatment component (1) is equipped with a grinding barrel (9) at the bottom, and a grinding component (14) is installed in the inner cavity of the grinding barrel (9). An eccentric wheel (16) is rotatably connected in the inner cavity of the grinding component (14), and a contact rod (20) is provided on the outer wall of the grinding barrel (9).

2. The grinding apparatus for lithium battery separators according to claim 1, characterized in that: The pretreatment component (1) is equipped with a first servo motor (2) on its top, a feed pipe (3) on its side, and a filter screen (4) at the bottom of its inner cavity.

3. The grinding apparatus for lithium battery separators according to claim 2, characterized in that: There are two main gears (5) and two auxiliary gears (6). The main gears (5) and auxiliary gears (6) mesh with each other. The bottom of the first servo motor (2) is mounted on the top of one of the main gears (5) via a first rotating shaft. The first crushing roller (7) is mounted on the bottom of the main gear (5) and the second crushing roller (8) is mounted on the bottom of the auxiliary gear (6).

4. The grinding apparatus for lithium battery separators according to claim 1, characterized in that: An elastic band (13) is installed on the top of the opposite side of the outer wall of the grinding assembly (14) and the inner wall of the grinding barrel (9). The pretreatment assembly (1) is connected to the inner cavity of the grinding barrel (9) through the filter screen (4). A protrusion (15) is installed on the inner wall of the grinding assembly (14).

5. The grinding apparatus for lithium battery separators according to claim 1, characterized in that: A screen (11) is installed at the bottom of the inner cavity of the grinding assembly (14), and a second servo motor (12) is installed at the bottom of the screen (11). The top of the second servo motor (12) is installed at the bottom of the eccentric wheel (16) via a second rotating shaft.

6. The grinding apparatus for lithium battery separators according to claim 1, characterized in that: A spring (17) is installed on the inner wall of the grinding barrel (9). The other end of the spring (17) is installed on the outer wall of the grinding assembly (14). A material extraction pipe (10) is installed at the bottom of the outer wall of the grinding barrel (9). A material extraction pump is connected to the flange of the outer wall of the material extraction pipe (10). The material extraction pipe (10) is located at the bottom of the screen (11). A through groove (18) is opened on the outer wall of the grinding barrel (9). A rotary motor (19) is installed on the outer wall of the grinding barrel (9). The top of the rotary motor (19) is installed at the bottom of the contact rod (20) through a third rotating shaft. The contact rod (20) is used to contact the grinding assembly (14) through the through groove (18).

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